Repository logo
 
Publication

Modeling age and growth of the bigeye thresher (Alopias superciliosus) in the Atlantic Ocean

2015-09-22Journal article Open Access
Simple item page
dc.contributor.authorFernandez-Carvalho, Joana
dc.contributor.authorCoelho, R.
dc.contributor.authorErzini, Karim
dc.contributor.authorSantos, Miguel N.
dc.date.accessioned2015-11-14T11:48:12Z
dc.date.available2015-11-14T11:48:12Z
dc.date.issued2015-09-22
dc.description.abstractThe bigeye thresher (Alopias superciliosus) is a pelagic shark captured as bycatch in pelagic longline fisheries. Important information on its biology is still missing, especially from the Atlantic Ocean. In all, 546 vertebrae collected by fishery observers between 2007 and 2009 were used to estimate age and growth parameters for this species in the Atlantic Ocean. The size composition was 102–265 cm fork length (FL) for females and 94–260 cm FL for males. The estimated ages ranged from 0 to 25 years for both sexes. From the 5 growth models used, the 3-parameter von Bertalanffy growth model, reparameterized to estimate length at birth (L0), produced the best results. The estimated parameters were asymptotic maximum length (Linf)=284 cm FL, growth coefficient (k)=0.06/year, and L0=109 cm FL for females and Linf=246 cm FL, k=0.09/year, and L0=108 cm FL for males. Although differences between hemispheres indicate slower growth rates in the South Atlantic Ocean, these differences may also have been caused by the lower sample size and larger specimen sizes for the Southern Hemisphere. The estimated growth coefficients are among the lowest found for the Alopiidae, highlighting the bigeye thresher’s slow growth and consequent low resilience to fishing pressure.pt_PT
dc.identifier.doihttp://doi.exe.org./10.7755/FB.113.9pt_PT
dc.identifier.issn0090-0656
dc.identifier.otherAUT: KER00534;
dc.identifier.urihttp://hdl.handle.net/10400.1/7045
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherUnited States Department of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service.pt_PT
dc.relationIntegrating biology, ecology and modeling to promote sustainable pelagic longline fisheries of highly migratory species in the Atlantic and Indian Oceans
dc.relation.publisherversionhttp://fishbull.noaa.gov/1134/fernandez-carvalho.pdfpt_PT
dc.titleModeling age and growth of the bigeye thresher (Alopias superciliosus) in the Atlantic Oceanpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleIntegrating biology, ecology and modeling to promote sustainable pelagic longline fisheries of highly migratory species in the Atlantic and Indian Oceans
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FMAR%2F109915%2F2009/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/Investigador FCT/IF%2F00253%2F2014%2FCP1251%2FCT0001/PT
oaire.citation.endPage481pt_PT
oaire.citation.issue4pt_PT
oaire.citation.startPage468pt_PT
oaire.citation.titleFishery Bulletinpt_PT
oaire.citation.volume113pt_PT
oaire.fundingStream3599-PPCDT
oaire.fundingStreamInvestigador FCT
person.familyNameCoelho
person.familyNameErzini
person.givenNameRui
person.givenNameKarim
person.identifier134638
person.identifier.ciencia-idDC1A-20B7-EAC0
person.identifier.ciencia-idD917-7133-341A
person.identifier.orcid0000-0003-3813-5157
person.identifier.orcid0000-0002-1411-0126
person.identifier.ridC-1163-2008
person.identifier.ridM-5216-2013
person.identifier.scopus-author-id56257111100
person.identifier.scopus-author-id7004015948
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication6366aa1b-1301-43a3-b2b0-1280311ac95f
relation.isAuthorOfPublicatione20f0e2d-3085-4c37-9e98-260dc9faddea
relation.isAuthorOfPublication.latestForDiscovery6366aa1b-1301-43a3-b2b0-1280311ac95f
relation.isProjectOfPublication646a664d-f899-4d80-a138-3023563d04c6
relation.isProjectOfPublication7e4e9002-ecbd-44d6-bf12-a31371093379
relation.isProjectOfPublication.latestForDiscovery646a664d-f899-4d80-a138-3023563d04c6

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Fernandez-Carvalho_2015_Age-Growth_Asuperciliosus_Atlantic.pdf
Size:
1.2 MB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
3.46 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

CCM2-Artigos (em revistas ou actas indexadas)